function getMacs(tbl){
	let domain = 'http://lanya.sybgt.cn/';
	let photo_id=54;
	let data={}
	let photo=dao.fetch("cmf_app_photo",Cnd.where("photo_id","=",54).and("photo_status","=",1))
	data.background=domain+photo.savepath
	let sub=dao.query("cmf_app_subject",Cnd.where("photo_id","=",photo_id)
			.and("subject_status","=",1))
			sub.forEach(s=>{
				let coor = s.subject_coor.split("/")
	            let x = coor[0];
	            let y = coor[1];
	            let info_uuid = s.info_uuid;
	            data['lists'] = new ArrayList();
	            data['lists'].add({"mac":s.info_mac,"x":x,"y":y,"rgb":s['rgb']});
			})
	attr("return",{"error":200,"message":"success","data":data})
	return "json"
}